<t>I usually use ON Libor fixing to bootstrap the USD overnight curve from t+0 to t+1, then some improper quote as tomorrow-next on [t+1, t+2], then finally use OIS on [t+2, (t+2)+mY] with m= 1, 2, ..., 50YNext Mon 25-Aug-2014 is a London holiday, but not a NY holiday. To the best of my understandin...